forked from KolibriOS/kolibrios
102 lines
3.2 KiB
C
102 lines
3.2 KiB
C
|
/**************************************************************************
|
||
|
|
*
|
||
|
|
* Copyright 2009 VMware, Inc.
|
||
|
|
* All Rights Reserved.
|
||
|
|
*
|
||
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
||
|
|
* copy of this software and associated documentation files (the
|
||
|
|
* "Software"), to deal in the Software without restriction, including
|
||
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
||
|
|
* distribute, sub license, and/or sell copies of the Software, and to
|
||
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
||
|
|
* the following conditions:
|
||
|
|
*
|
||
|
|
* The above copyright notice and this permission notice (including the
|
||
|
|
* next paragraph) shall be included in all copies or substantial portions
|
||
|
|
* of the Software.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
||
|
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
|
||
|
|
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
|
||
|
|
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
||
|
|
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
||
|
|
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||
|
|
*
|
||
|
|
**************************************************************************/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Functions for converting tiled data to linear and vice versa.
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
#include "util/u_debug.h"
|
||
|
|
#include "u_linear.h"
|
||
|
|
|
||
|
|
void
|
||
|
|
pipe_linear_to_tile(size_t src_stride, const void *src_ptr,
|
||
|
|
struct pipe_tile_info *t, void *dst_ptr)
|
||
|
|
{
|
||
|
|
int x, y, z;
|
||
|
|
char *ptr;
|
||
|
|
size_t bytes = t->cols * t->block.size;
|
||
|
|
char *dst_ptr2 = (char *) dst_ptr;
|
||
|
|
|
||
|
|
assert(pipe_linear_check_tile(t));
|
||
|
|
|
||
|
|
/* lets write lineary to the tiled buffer */
|
||
|
|
for (y = 0; y < t->tiles_y; y++) {
|
||
|
|
for (x = 0; x < t->tiles_x; x++) {
|
||
|
|
/* this inner loop could be replace with SSE magic */
|
||
|
|
ptr = (char*)src_ptr + src_stride * t->rows * y + bytes * x;
|
||
|
|
for (z = 0; z < t->rows; z++) {
|
||
|
|
memcpy(dst_ptr2, ptr, bytes);
|
||
|
|
dst_ptr2 += bytes;
|
||
|
|
ptr += src_stride;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void pipe_linear_from_tile(struct pipe_tile_info *t, const void *src_ptr,
|
||
|
|
size_t dst_stride, void *dst_ptr)
|
||
|
|
{
|
||
|
|
int x, y, z;
|
||
|
|
char *ptr;
|
||
|
|
size_t bytes = t->cols * t->block.size;
|
||
|
|
const char *src_ptr2 = (const char *) src_ptr;
|
||
|
|
|
||
|
|
/* lets read lineary from the tiled buffer */
|
||
|
|
for (y = 0; y < t->tiles_y; y++) {
|
||
|
|
for (x = 0; x < t->tiles_x; x++) {
|
||
|
|
/* this inner loop could be replace with SSE magic */
|
||
|
|
ptr = (char*)dst_ptr + dst_stride * t->rows * y + bytes * x;
|
||
|
|
for (z = 0; z < t->rows; z++) {
|
||
|
|
memcpy(ptr, src_ptr2, bytes);
|
||
|
|
src_ptr2 += bytes;
|
||
|
|
ptr += dst_stride;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
pipe_linear_fill_info(struct pipe_tile_info *t,
|
||
|
|
const struct u_linear_format_block *block,
|
||
|
|
unsigned tile_width, unsigned tile_height,
|
||
|
|
unsigned tiles_x, unsigned tiles_y)
|
||
|
|
{
|
||
|
|
t->block = *block;
|
||
|
|
|
||
|
|
t->tile.width = tile_width;
|
||
|
|
t->tile.height = tile_height;
|
||
|
|
t->cols = t->tile.width / t->block.width;
|
||
|
|
t->rows = t->tile.height / t->block.height;
|
||
|
|
t->tile.size = t->cols * t->rows * t->block.size;
|
||
|
|
|
||
|
|
t->tiles_x = tiles_x;
|
||
|
|
t->tiles_y = tiles_y;
|
||
|
|
t->stride = t->cols * t->tiles_x * t->block.size;
|
||
|
|
t->size = t->tiles_x * t->tiles_y * t->tile.size;
|
||
|
|
}
|